Mission 07 - Rally Point Alpha part 3

At the rear of the room is a Brute Chieftain with a Plasma Cannon and beyond him is a landing pad flanked by two turrets. Once you start thinning out the Brutes in the room with headshots, a Brute with a Gravity Hammer will begin to charge you from the landing pad in the distance.

While you may be able to snipe him from the doorway, you can also take cover in the upper walkway and shoot down at him from relative safety. At some point the Brute Chieftain with the Plasma Cannon will retreat and you can get a Checkpoint in the center of the room.

A few Jackals, the Chieftain and the turrets remain on the landing pad. Hang back in the middle of the room and empty your DMR into the Chieftain's face to reduce his shields and pop off his helmet. He won't fire any shots at you if you fire through the doors from far away. Use any Plasma Grenades in the area to kill the Jackals to conserve DMR ammo for the Chieftain.

Now, target the Grunts in the turrets with a single shot each from your scoped DMR. This will actually cause the turrets to explode. Once every last enemy is dead you can move out onto the landing pad. BE SURE TO GRAB THE PLASMA CANNON. This will make the next area VASTLY easier.